Given numbers are 638,121,760,133

The least common multiple of numbers can be find using the prime factorization method or LCM formula.

The LCM of 638,121,760,133 is 18667880.

Find LCM of 638,121,760,133 with Prime Factorization

Multiply the prime numbers at the bottom and the left side.

2 x 11 x 19 x 29 x 11 x 20 x 7 = 18667880

Therefore, the lowest common multiple of 638,121,760,133 is 18667880.

LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

Firstly, we have to find the product of all the numbers.

638 x 121 x 760 x 133 = 7803173840

Then, let us find the GCF of these five numbers. To do so, we have to list down the factors for each number and choose the highest factor that is in all of the lists.

638 : 1, 2, 11, 22, 29, 58, 319, 638

121 : 1, 11, 121

760 : 1, 2, 4, 5, 8, 10, 19, 20, 38, 40, 76, 95, 152, 190, 380, 760

133 : 1, 7, 19, 133

1 is the greatest number that appears in all the lists. Therefore, we can determine that the GCF of 638,121,760,133, is 1.

Now, the common factors can be found like this.

638:2x 11x 29

121:11x 11

760:2x 2x 2x 5x 19

133:7x 19

From this, we can see that the common factors because they appear for more than two numbers. So, just multiply them all together.

2x 11x 19 = 418

Therefore, the value for common factors is 418.

Now that we have all the elements of the formula, we can plug them in to calculate the LCM.

LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}

LCM = 7803173840/(1x418)

LCM = 7803173840/418

LCM = 18667880

Thus, we can understand that the LCM of 638,121,760,133 is 18667880.

Here are some samples of LCM of two or more Numbers calculations.

• LCM of 789, 262, 948, 677
• LCM of 711, 204, 419, 788
• LCM of 352, 767, 411, 974
• LCM of 278, 627, 494, 294
• LCM of 904, 942, 643, 115

1. What is the LCM of 638, 121, 760, 133?

Answer: LCM of 638, 121, 760, 133 is 18667880.

2. How to calculate the LCM of 638, 121, 760, 133?

The LCM can be found using two methods. You can either use the LCM formula or the prime factorization method to calculate the LCM of 638, 121, 760, 133.

3. What is the LCM formula?

The LCM formula is LCM(a1, a2, an) = (a1 x a2 x an)/{GCF(a1 x a2 x an) x common factors}.